Here's what rhymes with synoviai.
they may day way say pay re lay stay j array bay gay k ray che hay nay weigh sway fay fe fray slay yea dey hey ley rei sei sleigh whey fj jay kc lei payee rea rj tae wei zwei bey flay neigh cay fey roue shay spay away play survey clay essay gray grey obey pray okay prey spray repay stray tray oj valet allay fillet ij ok overlay bj bk drei saute tj tre bray dray brae filet splay moray sachet hooray noway overpay trey aurae hurray aweigh today delay anyway decay everyday ballet cafe dismay halfway astray underway bouquet cliche defray disarray passe dossier naturae replay societe underlay alleyway risque soiree souffle belay inveigh nisei prepay purvey sorbet toupee flyaway overplay overstay sickbay urethrae outstay reweigh umbrae underpay copay misplay display convey holiday betray runaway attache disobey faraway lamellae naivete sequelae waterway cabaret emigre francais gangway matinee puree toothache crochet croquet lingerie maxillae parquet giveaway hideaway throwaway airplay byplay resurvey soubriquet stowaway underplay briquet caesurae layaway medullae outplay bobsleigh respray yesterday formulae interplay portray vertebrae papillae passageway protege microarray nebulae fistulae getaway sobriquet wordplay workaday caraway castaway fibulae ricochet patellae pleurae stingray takeaway macrame roundelay uvulae foldaway tearaway communique breakaway scapulae straightaway cabriolet carriageway salmonellae copulae cybercafe penumbrae walkaway tarantulae companionway caravanserais trabeculae